4. A: I'm sleepy.
B: So am I.
A: I had a long day.
B: So did I.
A: I didn't even have lunch!
B: Neither did I.
A: I was busy the whole day.
B: So was I.
A: I had to bring work home with me.
B: I did, too.
A: Your day was just like mine.
B: Of course it was. We work together! 0.0